Grok 4 is xAI’s most advanced model yet, but early praise is clashing with old scandals and fresh tests of its limits.

Some X users suddenly became the subject of violent ideations by xAI’s flagship chatbot.

Billionaire and tech CEO Elon Musk has apologized for a response from Grok, the chatbot developed by his artificial intelligence company xAI.

Grok 4 was trained on Colossus, a supercomputer that xAI launched in Memphis last year. The system featured 100,000 graphics cards when it came online in September. According to xAI, that number topped 200,000 in May and will eventually reach 1 million.

Missouri Attorney General Andrew Bailey (R) is demanding information from several major tech firms with artificial intelligence (AI) chatbots, which he alleges are distorting facts and producing

As Grok fired off replies on X praising Hitler, the chatbot's parent company also recently got permission to emit 97 tons of carbon monoxide per year to keep it running.

The release comes months after the AI startup launched its previous iteration, suggesting an ongoing lightning pace of AI development.

Elon Musk says he's improved his AI chatbot following controversy over antisemitic remarks made by Grok 3 earlier this week. On Wednesday,July 9, Musk announced Grok 4, hailing it as "the smartest AI in the world.